aboutsummaryrefslogtreecommitdiffstats
path: root/net/ceph
diff options
context:
space:
mode:
authorAlex Elder <elder@inktank.com>2013-04-05 01:27:12 -0500
committerSage Weil <sage@inktank.com>2013-05-01 21:18:19 -0700
commit5f562df5f59340eae4272501b974903f48d2ad92 (patch)
tree6dccede3254a6878526da788febbddd8eac27462 /net/ceph
parent2169238dd3a01bc06670fb9c85635cbe97338ff8 (diff)
libceph: format class info at init time
An object class method is formatted using a pagelist which contains the class name, the method name, and the data concatenated into an osd request's outbound data. Currently when a class op is initialized in osd_req_op_cls_init(), the lengths of and pointers to these three items are recorded. Later, when the op is getting formatted into the request message, a new pagelist is created and that is when these items get copied into the pagelist. This patch makes it so the pagelist to hold these items is created when the op is initialized instead. Signed-off-by: Alex Elder <elder@inktank.com> Reviewed-by: Josh Durgin <josh.durgin@inktank.com>
Diffstat (limited to 'net/ceph')
-rw-r--r--net/ceph/osd_client.c29
1 files changed, 15 insertions, 14 deletions
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index ad24f210bf0c..db2624860384 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -399,28 +399,39 @@ void osd_req_op_cls_init(struct ceph_osd_request *osd_req, unsigned int which,
const void *request_data, size_t request_data_size)
{
struct ceph_osd_req_op *op = osd_req_op_init(osd_req, which, opcode);
+ struct ceph_pagelist *pagelist;
size_t payload_len = 0;
size_t size;
BUG_ON(opcode != CEPH_OSD_OP_CALL);
+ pagelist = kmalloc(sizeof (*pagelist), GFP_NOFS);
+ BUG_ON(!pagelist);
+ ceph_pagelist_init(pagelist);
+
op->cls.class_name = class;
size = strlen(class);
BUG_ON(size > (size_t) U8_MAX);
op->cls.class_len = size;
+ ceph_pagelist_append(pagelist, class, size);
payload_len += size;
op->cls.method_name = method;
size = strlen(method);
BUG_ON(size > (size_t) U8_MAX);
op->cls.method_len = size;
+ ceph_pagelist_append(pagelist, method, size);
payload_len += size;
op->cls.request_data = request_data;
BUG_ON(request_data_size > (size_t) U32_MAX);
op->cls.request_data_len = (u32) request_data_size;
+ ceph_pagelist_append(pagelist, request_data, request_data_size);
payload_len += request_data_size;
+ op->cls.request_info = &osd_req->r_data_out;
+ ceph_osd_data_pagelist_init(op->cls.request_info, pagelist);
+
op->cls.argc = 0; /* currently unused */
op->payload_len = payload_len;
@@ -456,7 +467,6 @@ static u64 osd_req_encode_op(struct ceph_osd_request *req,
{
struct ceph_osd_req_op *src;
u64 request_data_len = 0;
- struct ceph_pagelist *pagelist;
BUG_ON(which >= req->r_num_ops);
src = &req->r_ops[which];
@@ -485,23 +495,14 @@ static u64 osd_req_encode_op(struct ceph_osd_request *req,
WARN_ON(src->extent.osd_data != &req->r_data_in);
break;
case CEPH_OSD_OP_CALL:
- pagelist = kmalloc(sizeof (*pagelist), GFP_NOFS);
- BUG_ON(!pagelist);
- ceph_pagelist_init(pagelist);
-
dst->cls.class_len = src->cls.class_len;
dst->cls.method_len = src->cls.method_len;
dst->cls.indata_len = cpu_to_le32(src->cls.request_data_len);
- ceph_pagelist_append(pagelist, src->cls.class_name,
- src->cls.class_len);
- ceph_pagelist_append(pagelist, src->cls.method_name,
- src->cls.method_len);
- ceph_pagelist_append(pagelist, src->cls.request_data,
- src->cls.request_data_len);
- ceph_osd_data_pagelist_init(&req->r_data_out, pagelist);
-
WARN_ON(src->cls.response_data != &req->r_data_in);
- request_data_len = pagelist->length;
+ WARN_ON(src->cls.request_info != &req->r_data_out);
+ BUG_ON(src->cls.request_info->type !=
+ CEPH_OSD_DATA_TYPE_PAGELIST);
+ request_data_len = src->cls.request_info->pagelist->length;
break;
case CEPH_OSD_OP_STARTSYNC:
break;

Privacy Policy